PIC16F648A-I/P Microchip Technology Inc., PIC16F648A-I/P Datasheet - Page 28
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PIC16F648A-I/P
Manufacturer Part Number
PIC16F648A-I/P
Description
18 PIN, 7 KB FLASH, 256 RAM, 16 I/O
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16F648A-IP.pdf
(132 pages)
Specifications of PIC16F648A-I/P
Comparators
2
Cpu Speed
5 MIPS
Eeprom Memory
256 Bytes
Input Output
16
Interface
USART
Memory Type
Flash
Number Of Bits
8
Package Type
18-pin PDIP
Programmable Memory
7K Bytes
Ram Size
256 Bytes
Speed
20 MHz
Timers
2-8-bit, 1-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F648A-I/P
Manufacturer:
MICROCHIP
Quantity:
2 100
Part Number:
PIC16F648A-I/P
Manufacturer:
MICROCH
Quantity:
20 000
PIC16F630/676
3.3
PORTC is a general purpose I/O port consisting of 6 bi-
directional pins. The pins can be configured for either
digital I/O or analog input to A/D converter. For specific
information about individual functions such as the
comparator or the A/D, refer to the appropriate section
in this Data Sheet.
EXAMPLE 3-2:
3.3.1
The RC0/RC1/RC2/RC3 pins are configurable to
function as one of the following:
• a general purpose I/O
• an analog input for the A/D Converter
FIGURE 3-6:
DS40039C-page 26
PORTC
PORTC
bcf
clrf
bsf
clrf
movlw
movwf
bcf
TRISC
TRISC
Data bus
WR
WR
Note:
(PIC16F676 only)
RD
RD
PORTC
D
D
STATUS,RP0
PORTC
STATUS,RP0
ANSEL
0Ch
TRISC
STATUS,RP0
To A/D Converter
CK
CK
The ANSEL register (9Fh) must be clear to
configure an analog channel as a digital
input. Pins configured as analog inputs will
read ‘0’. The ANSEL register is defined for
the PIC16F676.
RC0/AN4, RC1/AN5, RC2/AN6, RC3/
AN7
Q
Q
Q
Q
INITIALIZING PORTC
BLOCK DIAGRAM OF
RC0/RC1/RC2/RC3 PINs
Analog Input
;Bank 0
;Init PORTC
;Bank 1
;digital I/O
;Set RC<3:2> as inputs
;and set RC<5:4,1:0>
;as outputs
;Bank 0
Mode
V
V
DD
SS
I/O Pin
3.3.2
The RC4 and RC5 pins are configurable to function as
a general purpose I/Os.
FIGURE 3-7:
PORTC
PORTC
TRISC
TRISC
Data bus
WR
WR
RD
RD
D
D
CK
CK
RC4 AND RC5
Q
Q
Q
Q
BLOCK DIAGRAM OF RC4
AND RC5 PINS
2003 Microchip Technology Inc.
V
V
DD
SS
I/O Pin